Samson TROVIS 3730-1, Перевод оригинальной инструкции

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EB 8484-1 EN 5-35
Installation
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Seal cable entries left unused with plugs.
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Fit equipment used in ambient tempera-
tures below –20 °C with metal cable en -
tries.
Equipment with type of protection Ex nA
In equipment operated according to type of
protection Ex nA (non-sparking equipment),
circuits may be connected, interrupted or
switched while energized only during instal-
lation, maintenance or repair.
Use certified cable glands and blanking
plugs with appropriate type of protection
and IP rating ≥ 6X and suitable for the certi -
fied temperature range.
The signal circuit is connected using screw
terminals (terminal 11/12) for electrical con -
ductors with a wire cross-section from 0.2 to
2.5 mm². The tightening torque is 0.5 to
0.6 Nm.
Equipment with type of protection Ex t
In equipment operated according to type of
protection Ex t (protection by enclosure), cir -
cuits may be connected, interrupted or
switched while energized only during instal-
lation, maintenance or repair.
Opening the enclosure cover in potentially
explosive dust atmospheres during operation
may cause the explosion protection to be-
come ineffective.
Use certified cable glands and blanking
plugs with appropriate type of protection
and IP rating ≥ 6X and suitable for the certi -
fied temperature range.
The signal circuit is connected using screw
terminals (terminal 11/12) for electrical con -
ductors with a wire cross-section from 0.2 to
2.5 mm². The tightening torque is 0.5 to
0.6 Nm.
5.8.1 Cable entry with cable
gland
The housing of the TROVIS 3730-1 Position-
er has two threaded boreholes, which can
be fitted with cable glands as required.
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The cable gland version depends on the
ambient temperature range (see techni-
cal data in the 'Design and principle of
operation' section).
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The screw terminals are designed for
wire cross-sections of 0.2 to 2.5 mm²
(tightening torque 0.5 Nm).
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Connect one current source at the maxi-
mum.
In general, it is not necessary to connect the
positioner to a bonding conductor. Should
this be required, however, this conductor can
be connected inside or outside of the device.
5.8.2 Electrical power
Risk of malfunction due to incorrect se-
quence of mounting, installation and
start-up.
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Observe the following sequence.
1.
Remove the protective caps from the
pneumatic connections.
2. Mount the positioner on the valve.
3. Connect the supply air.
4. Connect the electrical power.
5. Perform settings.
NOTICE !